Electronic sensor



FIG. 1 is a perspective view of an electronic sensor incorporating the design;

FIG. 2 is a top view thereof, the bottom view being a mirror image of the top view;

FIG. 3 is a right-side view thereof, the left-side view being a mirror image of the right-side view; and,

FIG. 4 is a front view thereof, the back view being a mirror image of the front view. 

CLAIM The ornamental design for an electronic sensor, as shown and described. 